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संबंधित प्रश्न
Define magnetic field lines.
A magnetic field exerts no force on:
an electrical charge moving perpendicular to its direction
an unmagnetised iron bar
a stationary electric charge
a magnet
The wire in Figure below is being moved downwards through the magnetic field so as to produce induced current.
(a) moving the wire at a higher speed?
(b) moving the wire upwards rather than downwards?
(c) using a stronger magnet?
(d) holding the wire still in the magnetic field?
(e) moving the wire parallel to the magnetic field lines?
Can two magnetic field lines intersect each other? Give reason to your answer.
Figure. shows a bar magnet placed on the table top with its north pole pointing towards south. The arrow shows the north-south direction. There are no other magnets or magnetic materials nearby.
Indicate by crosses, the likely positions of the neutral points.
Define the Isogonic line.
State briefly the molecular theory of magnetism.
Repulsion is a surer test of magnetic condition of a body than attraction. Explain.
Inside the magnet, the field lines moves ____________.
Magnetic field lines determine ______.
